Iterative decoding using attenuated extrinsic information from sum-product decoder for PMR channel with patterned medium

Yasuaki Nakamura; Mitsuhiro Nishimura; Yoshihiro Okamoto; Hisashi Osawa; Hajime Aoi; Hiroaki Muraoka; Yoshihisa Nakamura

doi:10.1109/TMAG.2007.893421

Iterative decoding using attenuated extrinsic information from sum-product decoder for PMR channel with patterned medium

Yasuaki Nakamura, Mitsuhiro Nishimura, Yoshihiro Okamoto, Hisashi Osawa, Hajime Aoi, Hiroaki Muraoka, Yoshihisa Nakamura

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

An LDPC coding and iterative decoding system is studied in perpendicular magnetic recording (PMR) with a bit-patterned medium. We propose an iterative decoding scheme using attenuated extrinsic information from a sum-product decoder, and the bit error rate (BER) performance of the LDFC coding and iterative decoding system is evaluated by R/W computer simulations. It has been clarified that at an area] density of 1 Tbpsi the proposed system provides a jitter margin of the island edges of approximately 0.6 % larger than the conventional system using (3, 18)-regular LDPC code.

Original language	English
Pages (from-to)	2277-2279
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	43
Issue number	6
DOIs	https://doi.org/10.1109/TMAG.2007.893421
Publication status	Published - 2007 Jun
Externally published	Yes

Keywords

Iterative decoding
LDPC codes
Patterned medium
Perpendicular magnetic recording (PMR)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2007.893421

Cite this

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title = "Iterative decoding using attenuated extrinsic information from sum-product decoder for PMR channel with patterned medium",

abstract = "An LDPC coding and iterative decoding system is studied in perpendicular magnetic recording (PMR) with a bit-patterned medium. We propose an iterative decoding scheme using attenuated extrinsic information from a sum-product decoder, and the bit error rate (BER) performance of the LDFC coding and iterative decoding system is evaluated by R/W computer simulations. It has been clarified that at an area] density of 1 Tbpsi the proposed system provides a jitter margin of the island edges of approximately 0.6 % larger than the conventional system using (3, 18)-regular LDPC code.",

keywords = "Iterative decoding, LDPC codes, Patterned medium, Perpendicular magnetic recording (PMR)",

author = "Yasuaki Nakamura and Mitsuhiro Nishimura and Yoshihiro Okamoto and Hisashi Osawa and Hajime Aoi and Hiroaki Muraoka and Yoshihisa Nakamura",

note = "Funding Information: This work was supported in part by the Scientific Research of Japan Society for the Promotion of Science (JSPS), in part by the Grant-in-Aid no. 17560310, and in part by the Storage Research Consortium (SRC), Japan.",

year = "2007",

month = jun,

doi = "10.1109/TMAG.2007.893421",

language = "English",

volume = "43",

pages = "2277--2279",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6",

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T1 - Iterative decoding using attenuated extrinsic information from sum-product decoder for PMR channel with patterned medium

AU - Nakamura, Yasuaki

AU - Nishimura, Mitsuhiro

AU - Okamoto, Yoshihiro

AU - Osawa, Hisashi

AU - Aoi, Hajime

AU - Muraoka, Hiroaki

AU - Nakamura, Yoshihisa

N1 - Funding Information: This work was supported in part by the Scientific Research of Japan Society for the Promotion of Science (JSPS), in part by the Grant-in-Aid no. 17560310, and in part by the Storage Research Consortium (SRC), Japan.

PY - 2007/6

Y1 - 2007/6

N2 - An LDPC coding and iterative decoding system is studied in perpendicular magnetic recording (PMR) with a bit-patterned medium. We propose an iterative decoding scheme using attenuated extrinsic information from a sum-product decoder, and the bit error rate (BER) performance of the LDFC coding and iterative decoding system is evaluated by R/W computer simulations. It has been clarified that at an area] density of 1 Tbpsi the proposed system provides a jitter margin of the island edges of approximately 0.6 % larger than the conventional system using (3, 18)-regular LDPC code.

AB - An LDPC coding and iterative decoding system is studied in perpendicular magnetic recording (PMR) with a bit-patterned medium. We propose an iterative decoding scheme using attenuated extrinsic information from a sum-product decoder, and the bit error rate (BER) performance of the LDFC coding and iterative decoding system is evaluated by R/W computer simulations. It has been clarified that at an area] density of 1 Tbpsi the proposed system provides a jitter margin of the island edges of approximately 0.6 % larger than the conventional system using (3, 18)-regular LDPC code.

KW - Iterative decoding

KW - LDPC codes

KW - Patterned medium

KW - Perpendicular magnetic recording (PMR)

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Iterative decoding using attenuated extrinsic information from sum-product decoder for PMR channel with patterned medium

Abstract

Keywords

ASJC Scopus subject areas

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